Filling control mechanism for looms



Aug. 31 1926.

G. B AMBLER FILLING CONTROL MECHANISM FOR LOOMS Original Filed Feb. 10, 1922 b Fig.5

Patented Aug. 31, 1.9.26.

assa Hearse FATENT OFF-ICE.

GEORGE SB. AMBLER, OF LEOMINSTER, .MASSACI-I USETTS,ASSIGNOR TO F. A. WHITNEY CARRIAGE" COMPANY, or LEOIvIZNSTE MASSACHUSETTS.

R, MASSACHUSETTS, A CORPORATION OF FILLING CONTROL MECHANISM FOR LODMS.

-App1ieat-ion filed Februarym, i922, Serial 'No:535; 73.

i This invention relates to looms and more particularly to that type of loom wherein a length offilling is drawn through the shed from a supply as distinguished; from the usual practice-whereinthe supply-pf filling is carriedthrough the-shed on a shuttle. Such types of-looms'are particularly adapted for weaving relatively-stiif andheavy materialsuch as cane, reed and substitutes therefor. it-he present invention more particularly relates to improvements for facilitating the control of the supply of filling. lvfy invention willbest be understood by reference-to the foll'0wingdescriptionof-an illustrative embodiment thereoi shown byway of examplein-the accompanying drawing, wherei11:

Fig. lis a plan view ofcertain portions of a needle loomadapted particularly for operation 'on artificial reed commonly known as fiber;

Fig.-2 is an end elevation the parts shown in Fig. 1

Figp3-is a section 'on the-line 33 of Fig. 2 and Fig. Lisa-section through the adjacent portions of two cooperating wheels of the feeding mechanism. along a'r-adial line and is on a large scale.

Referring to the drawings, I. have there shown asupply of filling-material consistof certain of ingof aroll 5-of fiberor artificial reed.

journalled to rotate on a suitable stationary support 7. The end ofthe filling is supported onone side of the loomframe by the frictional catch-9 and it is seizedand a length thereof drawn through the shed by* means of the needle 11, the type of loom illustratedby way of example being what is 'known as a single-:needle loom.

1A large'roll of heavy material as 5 0ffers a considerable and varying resistance to unwinding and :is subject to inertia. In accordance with 2 my invention, therefore, I provide'means whereby the filling strand is drawn from the ro1l5 independently of the action of the needle 11in such manner that asuitab-le slack of the filling strand is provided adjacent the holding means 9 as illustrated diagrannnatically"in Fig. 1 so that the needle 11 acts merely to over- Renewed January 28, 1926.

comethe frictional resistance of the holding means-9 and'operates under substantiallyeonstant conditions indrawing the filling b'etweenthewarps. For this purpose I preferably provide a feeding "means which may becrganizedasaunit andsecured to theside frame 13 of the loomand for this purpose '-I provide 'a "suitablebracket or fran1e-15-ivhich"provides a bearing'for a shaft 17 on oneend ofwhichisa-gear' 19, herein a -be-vel-ge'ar, adapted tomesh with a gear. 21 mounted "on one ofthe: power driven shaftsofthe loom. "The bevel gear connection, of course, is exemplary of other means for providing: a power transmitting eonnection'between one of the driven shafts of the 100m andthesha'ft 17. A suitable end bearing tnotfshownyqnay, of course, be providedfor thelower end ofthe shaft 17 whenynecessary or desired. .The shaft 17 is adapted'to drive a' wheel 23 adapted to'act on the-filling strand and feed the same. 'I-Ierein this'wheel 23is loose on the end-of the shaft 17,"Wl1l0h shaft, however, carries a gear 25 from which the wheel 23 is drivenby means of the back gearing 27 supported on the bracket. 15.

he or morecooperating idle wheels 29 serve to press the filler strand against the feed wheel 23 and-conveniently .as shown in Fig. 4 the 'sface-ofthe-wheel 23' may be grooved and the faces of the wheels 29 bevelled off to-enter thisgrooverthe crests of the bevelledoff-portions, however, being themselves g1' oovedto *fit-f-theifiller strand. I =l1erein show 'twoidler *wheels :29 which serveto clampt'he lil'ler strand at two points and bind it'to the feed-wheel 23'around an extended arc whereby the-feed wheel takes-a 'bindin'gqgrip on the-same. The whee1s'29inay be 'journalled on a lever 31 pivoted to an extension-of the bracket .15 toswing'in a -horizontalr plane and having portion extending asahandle as clearly seenin Fig.1. A spring33 secured to the lever and to asuitableattaching member 35 secured to'the 'bracket or" auxiliary frame '15 normally swings-the wheels into. cooper- "ating relation with the feed wheel 23 so that the strand will befed. for a purpose presently to-bedescriloedthe I to the feeding wheels.

It will be apparent from the description that as the motion of the loom proceeds the feed wheel 23 will be continuously driven and will draw off the filling strand from the roll 5 and deliver a supply of slack strand between the roll and the holding device 9. The needle, operating intermittently, draws up a sufficient amount of the fillmg strand from this slack without any resistance from the heavy roll 5. The speed of the parts is so proportioned that the continuous feed of the strand supplies constantly sufficient slack for the action of the needle. If, however, it is desired to interrupt the feed the lever 21 may be swung counterclockwise viewing Fig. 2, releasing the pressure of the rolls 29 on the feed roll n8. Since the fairleader 37 is mounted on the lever 29, the strand will be lifted out of cooperation withthe wheel 23, thus positively stopping, the feed. This removal of the strand from the groove in the wheel 23 by the action of the fairleader permits it to be lifted out from between the wheels if desired, in which case the lever may again be released and the feed of the strand will be, interrupted although the wheel 23 may'still be driven, this-being a convenient operation for certain contingencies of adjustment of the loom mechanism.

The two binder wheels29 tension a considcrable length of the strand tensioned around the feed wheel 23 and the strand is thus smoothed out and straightened and delivered in good condition for incorporation into the fabric.

For different widths of fabric a shorter or longer filling strand is required. In the embodiment of the invention shown the wheel 23 may be changed to provide a wheel of sufficient size. for the desired purpose. Obviously the arrangement of parts is such that the two binder wheelsv will cooperate with feed wheels of different sizes.

Having described in detail the particular embodiment of my invention shown by way of example in the accompanying drawing, what I claim as new and desire to secure by Letters Patent I shall express in the following claims 1. In a loom of the class described wherein a mechanical picking device grasps the end of the filling strand and carries it endwise through the shed, a holding device for clamping the strand to hold the end to be taken by the picking device and arranged to yield to the traction of the latter and driven means continuously acting on the filling to feed it from the supply independently of said picking means and deliver it slackly t0 the rear of said holding means.

2. In a loom of the class described wherein a mechanical picking device grasps the end of the filling strand and carries it endwise through the shed, a holding device for presenting the end of the strand for operation of the picking means thereon and means through which the strand passes acting thereon to draw out a length thereof between the supply and the holding device, said means closing on and gripping a considerable length of strand whereby to true the same.

3. Ina loom of the class described a filling strand supply, a holding device for presenting the end of the strand for operation of picking means thereon and means interposed between the holder and supply for feeding and conditioning the strand comprising a relatively large, grooved, driven wheel and a pair of cooperating binder wheels pressed toward said driven wheel at spaced points about the circumference thereof.

4:. A device for feeding filling strand comprising as a unitary mechanism a frame for mountingon the loom side, a shaft carried thereby having an end provided with a gear adapted to cooperate with a gear on a shaft of the loom, a feed wheel taking'motion therefrom and a spring-pressed, movable support on the frame having a binder wheel cooperating with said feed wheel.

5. A device for feeding filling strand comprising asa unitary mechanism a. frame for mounting on the loom side, a shaft carried thereby having an end provided with a gear adapted to cooperate with a gear on a shaft of the loom, a feed wheel taking motion therefrom, a sprin -pressed,'movable support on the frame having a binder wheel cooperating with said feed wheel and a fairleader on said support.

6. A device for feeding filling strand comprising as a unitary mechanism a frame for mounting on the loom side, a shaft carried thereby having an end provided with a gear adapted to cooperate with a gear on a shaft of the loom, a feed wheel loose on the shaft, back gearing driving the wheel from a the shaft and a spring-pressed, movable support on the frame having a binder wheel cooperating with said feed wheel.

7. A device for feeding filling strand comprising as a unitary mechanism a frame for mounting on the loom side, a shaft carried thereby having an end provided with a gear adapted to cooperate with a gear on ashaft of the loom, a feed wheel taking motion from the shaft, a movable spring-pressed support on the frame and a pair of binder wheels on the support adapted to press on the feed wheel at spaced points. i 1

8. The weft feeding device as described comprising a feed wheel and a set of binder wheels yieldingly pressed toward the feed wheel, said wheels having edge portions co operatively formed to grip the filling becomprising a feed Wheel a pair of binder 10 tween them. wheels mounted on a swingable lever yield- 9. The weft feeding device as described ingly pressed toward said feed wheel, the comprising a feed wheel and a pair of binder edges of said wheels being adapted to grip 5 Wheels mounted on a swingable lever yieldthe filling between them, and a 'fairleader ingly pressed toward said feed wheel, the for the filling mounted on the lever. 15 edges of said wheels being adapted to grip In testimony whereof, I have signed my the filling between them. name to this specification.

10. The weft feeding device as described GEORGE B. AMBLER. 

